One of the big technical challenges is created by the desire to see the algae entrained in the feeding current entering the carapace and getting moved up to the location in front of the mandibles. We used an epi-fluorecence microscope with a blue Argon laser as light source.

This video was produced by Dr. Jeroen Gerritsen while he was at the University of Georgia.

Details in: Gerritsen, J., K.G. Porter and J.R. Strickler (1988) Not by sieving alone: Suspension feeding in Daphnia. Bull. Mar. Sci. 43, 366-376